<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <!-- <div class="title-container">
        <h3 class="title">Login Form</h3>
      </div> -->

      <!-- logo图片 -->
      <div class="avatar_box">
        <img src="http://destiny001.gitee.io/admin-dist/img/logo.b5a855ee.png" alt="">
      </div>

      <!-- 占位盒子 -->
      <div class="seat" />

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="请输入用户名"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <!-- <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">Login</el-button> -->

      <el-form-item class="login-btn">
        <el-button ref="btn" type="primary" @click="handleLogin">登录</el-button>
        <el-button type="info" @click="resetForm('loginForm')">重置</el-button>
      </el-form-item>

      <div class="tips">
        <span style="margin-right:20px;">用户名: admin</span>
        <span> 密码: 123456</span>
      </div>

    </el-form>
  </div>
</template>

<script>
// import { validUsername } from '@/utils/validate'

export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [
          { required: true, message: '用户名不能为空', trigger: 'blur' },
          { pattern: /^[\u4e00-\u9fa5_a-zA-Z0-9.·-]+$/, message: '用户名不支持特殊字符' },
          { min: 3, max: 10, message: '密码长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          { pattern: /^[_a-zA-Z0-9]{6,12}$/, message: '密码不合法', trigger: 'blur' }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    resetForm(formName) { // 表单重置
      this.$refs[formName].resetFields()
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(async valid => {
        // 表单验证不通过即返回
        if (!valid) return
        this.loading = true
        try {
          await this.$store.dispatch('user/login', this.loginForm)
          this.$message.success('登录成功！')
          this.$router.push('/')
        } catch (err) {
          console.log(err)
        } finally {
          this.loading = false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#606266;
$cursor: #606266;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  box-sizing: border-box;

  .el-input {
    display: inline-block;
    // height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      // padding: 12px 5px 12px 15px;
      color: $light_gray;
      // height: 47px;
      caret-color: $cursor;
      height: 40px;
      line-height: 40px;
      font-size: 14px;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    // border: 1px solid rgba(255, 255, 255, 0.1);
    border: 1px solid #DCDFE6;
    background: #FFF;
    height: 40px;
    line-height: 40px;
    border-radius: 5px;
    // color: #454545;
    color: #606266;

    .el-form-item__content{
      height: 40px;
    }

  }
}
</style>

<style lang="scss" scoped>
$bg:#2b4b6b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  // 按钮
  .login-btn{
    border: none;
    display: flex;
    justify-content: flex-end;
  }

  .login-form {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 450px;
    height: 300px;
    max-width: 100%;
    padding: 0 20px;
    // padding: 160px 35px 0;
    // margin: 0 auto;
    // overflow: hidden;
    background: #fff;

    // logo样式
    .avatar_box{
      position: absolute;
      z-index: 2;
      left: 50%;
      transform: translate(-50%,-50%);
      width: 152px;
      height: 152px;
      padding: 10px;
      background: #fff;
      border-radius: 50%;
      border: 1px solid #eee;
      box-shadow: 0 0 10px #ddd;

      img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }

    // 占位盒子
    .seat{
      height: 112px;
    }

  }

  .tips {
    font-size: 14px;
    color: #fff;
    padding-top: 10px;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    // padding: 6px 5px 6px 15px;
    color: $dark_gray;
    // vertical-align: middle;
    // width: 30px;
    display: inline-block;
    padding-left: 10px;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    // top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
